AL10 postcode district: Hatfield and around, Hertfordshire

AL10 is a postcode district in Hertfordshire, with 786 postcodes in use in 4 sectors. It has postcodes in Hatfield and Welham Green. Its council is Welwyn Hatfield.

Postcodes in use
786
Sectors
4
Council
Welwyn Hatfield
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in AL10, by flood risk

Map of every postcode in AL10, by flood risk Of the 786 postcodes in AL10 that ONS places, 1 are at medium risk at worst, 7 are at low risk at worst and 778 are not on the Environment Agency's at-risk list. Places named: Hatfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A1000A414A6129 AL10 0AA: not on the flood risk listAL10 0AB: not on the flood risk listAL10 0AD: not on the flood risk listAL10 0AE: not on the flood risk listAL10 0AG: not on the flood risk listAL10 0AH: not on the flood risk listAL10 0AJ: not on the flood risk listAL10 0AL: not on the flood risk listAL10 0AN: not on the flood risk listAL10 0AQ: not on the flood risk listAL10 0AT: not on the flood risk listAL10 0AU: not on the flood risk listAL10 0AW: not on the flood risk listAL10 0AX: not on the flood risk listAL10 0AY: not on the flood risk listAL10 0AZ: not on the flood risk listAL10 0BA: not on the flood risk listAL10 0BB: not on the flood risk listAL10 0BD: not on the flood risk listAL10 0BE: not on the flood risk listAL10 0BG: not on the flood risk listAL10 0BH: not on the flood risk listAL10 0BJ: not on the flood risk listAL10 0BL: not on the flood risk listAL10 0BN: not on the flood risk listAL10 0BQ: not on the flood risk listAL10 0BS: not on the flood risk listAL10 0BU: not on the flood risk listAL10 0BW: not on the flood risk listAL10 0BX: not on the flood risk listAL10 0BY: not on the flood risk listAL10 0DA: not on the flood risk listAL10 0DB: not on the flood risk listAL10 0DD: not on the flood risk listAL10 0DE: not on the flood risk listAL10 0DF: not on the flood risk listAL10 0DG: not on the flood risk listAL10 0DH: not on the flood risk listAL10 0DJ: not on the flood risk listAL10 0DL: not on the flood risk listAL10 0DN: not on the flood risk listAL10 0DP: not on the flood risk listAL10 0DQ: not on the flood risk listAL10 0DR: not on the flood risk listAL10 0DS: not on the flood risk listAL10 0DT: not on the flood risk listAL10 0DU: not on the flood risk listAL10 0DW: not on the flood risk listAL10 0DX: not on the flood risk listAL10 0DY: not on the flood risk listAL10 0DZ: not on the flood risk listAL10 0EA: not on the flood risk listAL10 0ED: not on the flood risk listAL10 0EE: not on the flood risk listAL10 0EF: not on the flood risk listAL10 0EG: not on the flood risk listAL10 0EH: not on the flood risk listAL10 0EJ: not on the flood risk listAL10 0EQ: not on the flood risk listAL10 0ER: not on the flood risk listAL10 0ES: not on the flood risk listAL10 0ET: not on the flood risk listAL10 0EW: not on the flood risk listAL10 0EY: not on the flood risk listAL10 0FD: not on the flood risk listAL10 0FE: not on the flood risk listAL10 0FG: not on the flood risk listAL10 0FH: not on the flood risk listAL10 0FJ: not on the flood risk listAL10 0FL: not on the flood risk listAL10 0FN: not on the flood risk listAL10 0FP: not on the flood risk listAL10 0FQ: not on the flood risk listAL10 0FR: not on the flood risk listAL10 0FS: not on the flood risk listAL10 0FT: not on the flood risk listAL10 0HE: not on the flood risk listAL10 0HF: not on the flood risk listAL10 0HG: not on the flood risk listAL10 0HH: not on the flood risk listAL10 0HJ: not on the flood risk listAL10 0HL: not on the flood risk listAL10 0HN: not on the flood risk listAL10 0HP: not on the flood risk listAL10 0HR: not on the flood risk listAL10 0HU: not on the flood risk listAL10 0HW: not on the flood risk listAL10 0HX: not on the flood risk listAL10 0HY: not on the flood risk listAL10 0HZ: not on the flood risk listAL10 0JA: not on the flood risk listAL10 0JB: not on the flood risk listAL10 0JD: not on the flood risk listAL10 0JE: not on the flood risk listAL10 0JF: not on the flood risk listAL10 0JG: not on the flood risk listAL10 0JJ: not on the flood risk listAL10 0JQ: not on the flood risk listAL10 0JT: not on the flood risk listAL10 0JW: not on the flood risk listAL10 0JY: not on the flood risk listAL10 0JZ: not on the flood risk listAL10 0LF: not on the flood risk listAL10 0LG: not on the flood risk listAL10 0LJ: not on the flood risk listAL10 0LP: not on the flood risk listAL10 0LR: not on the flood risk listAL10 0LU: not on the flood risk listAL10 0LX: not on the flood risk listAL10 0LY: not on the flood risk listAL10 0LZ: not on the flood risk listAL10 0NA: not on the flood risk listAL10 0NE: not on the flood risk listAL10 0NF: not on the flood risk listAL10 0NL: not on the flood risk listAL10 0NZ: not on the flood risk listAL10 0PA: not on the flood risk listAL10 0PB: not on the flood risk listAL10 0PD: not on the flood risk listAL10 0PE: not on the flood risk listAL10 0PF: not on the flood risk listAL10 0PG: not on the flood risk listAL10 0PH: not on the flood risk listAL10 0PJ: not on the flood risk listAL10 0PL: not on the flood risk listAL10 0PN: not on the flood risk listAL10 0PP: not on the flood risk listAL10 0PQ: not on the flood risk listAL10 0PR: not on the flood risk listAL10 0PS: not on the flood risk listAL10 0PT: not on the flood risk listAL10 0PU: not on the flood risk listAL10 0PW: not on the flood risk listAL10 0PX: not on the flood risk listAL10 0QA: not on the flood risk listAL10 0QB: not on the flood risk listAL10 0QH: not on the flood risk listAL10 0QJ: not on the flood risk listAL10 0QL: not on the flood risk listAL10 0QN: not on the flood risk listAL10 0QP: not on the flood risk listAL10 0QQ: not on the flood risk listAL10 0QR: not on the flood risk listAL10 0QS: not on the flood risk listAL10 0QT: not on the flood risk listAL10 0QU: not on the flood risk listAL10 0QW: not on the flood risk listAL10 0QX: not on the flood risk listAL10 0QZ: not on the flood risk listAL10 0RA: not on the flood risk listAL10 0RB: not on the flood risk listAL10 0RD: not on the flood risk listAL10 0RE: not on the flood risk listAL10 0RF: not on the flood risk listAL10 0RG: not on the flood risk listAL10 0RH: not on the flood risk listAL10 0RJ: not on the flood risk listAL10 0RL: not on the flood risk listAL10 0RN: not on the flood risk listAL10 0RP: not on the flood risk listAL10 0RQ: not on the flood risk listAL10 0RR: not on the flood risk listAL10 0RS: not on the flood risk listAL10 0RT: not on the flood risk listAL10 0RU: not on the flood risk listAL10 0RW: not on the flood risk listAL10 0RX: not on the flood risk listAL10 0RY: not on the flood risk listAL10 0RZ: not on the flood risk listAL10 0SA: not on the flood risk listAL10 0SB: not on the flood risk listAL10 0SD: not on the flood risk listAL10 0SE: not on the flood risk listAL10 0SF: not on the flood risk listAL10 0SG: not on the flood risk listAL10 0SH: not on the flood risk listAL10 0SJ: not on the flood risk listAL10 0SL: not on the flood risk listAL10 0SN: not on the flood risk listAL10 0SP: not on the flood risk listAL10 0SQ: not on the flood risk listAL10 0ST: not on the flood risk listAL10 0SW: not on the flood risk listAL10 0SX: not on the flood risk listAL10 0SY: not on the flood risk listAL10 0TA: not on the flood risk listAL10 0TD: not on the flood risk listAL10 0TF: not on the flood risk listAL10 0TL: not on the flood risk listAL10 0TN: not on the flood risk listAL10 0TP: not on the flood risk listAL10 0TR: not on the flood risk listAL10 0TS: not on the flood risk listAL10 0TT: not on the flood risk listAL10 0TU: not on the flood risk listAL10 0TW: not on the flood risk listAL10 0TX: not on the flood risk listAL10 0TY: not on the flood risk listAL10 0TZ: not on the flood risk listAL10 0UA: not on the flood risk listAL10 0UB: not on the flood risk listAL10 0UD: not on the flood risk listAL10 0UE: not on the flood risk listAL10 0UG: not on the flood risk listAL10 0UH: not on the flood risk listAL10 0UJ: not on the flood risk listAL10 0UL: not on the flood risk listAL10 0UP: not on the flood risk listAL10 0UQ: not on the flood risk listAL10 0UT: not on the flood risk listAL10 0UW: not on the flood risk listAL10 0XR: not on the flood risk listAL10 0XS: not on the flood risk listAL10 0XY: not on the flood risk listAL10 0YD: not on the flood risk listAL10 8AA: not on the flood risk listAL10 8AB: not on the flood risk listAL10 8AE: not on the flood risk listAL10 8AF: not on the flood risk listAL10 8AG: not on the flood risk listAL10 8AH: not on the flood risk listAL10 8AJ: not on the flood risk listAL10 8AL: not on the flood risk listAL10 8AN: not on the flood risk listAL10 8AP: not on the flood risk listAL10 8AQ: not on the flood risk listAL10 8AR: not on the flood risk listAL10 8AS: not on the flood risk listAL10 8AU: not on the flood risk listAL10 8AW: not on the flood risk listAL10 8AX: not on the flood risk listAL10 8BB: not on the flood risk listAL10 8BE: not on the flood risk listAL10 8BG: not on the flood risk listAL10 8BJ: not on the flood risk listAL10 8BL: not on the flood risk listAL10 8BN: not on the flood risk listAL10 8BP: not on the flood risk listAL10 8BS: not on the flood risk listAL10 8BT: not on the flood risk listAL10 8BU: not on the flood risk listAL10 8BX: not on the flood risk listAL10 8BY: not on the flood risk listAL10 8BZ: not on the flood risk listAL10 8DA: not on the flood risk listAL10 8DB: not on the flood risk listAL10 8DD: not on the flood risk listAL10 8DE: not on the flood risk listAL10 8DF: not on the flood risk listAL10 8DG: not on the flood risk listAL10 8DH: not on the flood risk listAL10 8DJ: not on the flood risk listAL10 8DL: not on the flood risk listAL10 8DN: not on the flood risk listAL10 8DP: not on the flood risk listAL10 8DQ: not on the flood risk listAL10 8DR: not on the flood risk listAL10 8DS: not on the flood risk listAL10 8DU: not on the flood risk listAL10 8DW: not on the flood risk listAL10 8DX: not on the flood risk listAL10 8DY: not on the flood risk listAL10 8DZ: not on the flood risk listAL10 8EA: not on the flood risk listAL10 8EB: not on the flood risk listAL10 8ED: not on the flood risk listAL10 8EE: not on the flood risk listAL10 8EF: not on the flood risk listAL10 8EN: not on the flood risk listAL10 8EP: not on the flood risk listAL10 8ER: not on the flood risk listAL10 8ES: not on the flood risk listAL10 8ET: not on the flood risk listAL10 8EU: not on the flood risk listAL10 8EW: not on the flood risk listAL10 8EX: not on the flood risk listAL10 8EY: not on the flood risk listAL10 8EZ: not on the flood risk listAL10 8FB: not on the flood risk listAL10 8FD: not on the flood risk listAL10 8FE: not on the flood risk listAL10 8FF: not on the flood risk listAL10 8FG: not on the flood risk listAL10 8FH: not on the flood risk listAL10 8FJ: not on the flood risk listAL10 8FN: not on the flood risk listAL10 8FQ: not on the flood risk listAL10 8FR: not on the flood risk listAL10 8FS: not on the flood risk listAL10 8FT: not on the flood risk listAL10 8FU: not on the flood risk listAL10 8FW: not on the flood risk listAL10 8FX: not on the flood risk listAL10 8FY: not on the flood risk listAL10 8HA: not on the flood risk listAL10 8HD: not on the flood risk listAL10 8HE: not on the flood risk listAL10 8HF: not on the flood risk listAL10 8HG: not on the flood risk listAL10 8HH: not on the flood risk listAL10 8HJ: not on the flood risk listAL10 8HL: not on the flood risk listAL10 8HN: not on the flood risk listAL10 8HP: not on the flood risk listAL10 8HQ: not on the flood risk listAL10 8HS: not on the flood risk listAL10 8HW: not on the flood risk listAL10 8HX: not on the flood risk listAL10 8HY: not on the flood risk listAL10 8JL: not on the flood risk listAL10 8JP: not on the flood risk listAL10 8JR: not on the flood risk listAL10 8JS: not on the flood risk listAL10 8JT: not on the flood risk listAL10 8JU: not on the flood risk listAL10 8JW: not on the flood risk listAL10 8JX: not on the flood risk listAL10 8JY: not on the flood risk listAL10 8JZ: not on the flood risk listAL10 8LA: not on the flood risk listAL10 8LB: not on the flood risk listAL10 8LD: not on the flood risk listAL10 8LE: not on the flood risk listAL10 8LF: not on the flood risk listAL10 8LG: not on the flood risk listAL10 8LH: not on the flood risk listAL10 8LJ: not on the flood risk listAL10 8LL: not on the flood risk listAL10 8LN: not on the flood risk listAL10 8LP: not on the flood risk listAL10 8LQ: not on the flood risk listAL10 8LR: not on the flood risk listAL10 8LS: not on the flood risk listAL10 8LU: not on the flood risk listAL10 8LW: not on the flood risk listAL10 8LY: not on the flood risk listAL10 8LZ: not on the flood risk listAL10 8NA: not on the flood risk listAL10 8NB: not on the flood risk listAL10 8NL: not on the flood risk listAL10 8NN: not on the flood risk listAL10 8NP: not on the flood risk listAL10 8NR: not on the flood risk listAL10 8NS: not on the flood risk listAL10 8NT: not on the flood risk listAL10 8NU: not on the flood risk listAL10 8NW: not on the flood risk listAL10 8NX: not on the flood risk listAL10 8NY: not on the flood risk listAL10 8NZ: not on the flood risk listAL10 8PA: not on the flood risk listAL10 8PB: not on the flood risk listAL10 8PD: not on the flood risk listAL10 8PE: not on the flood risk listAL10 8PF: not on the flood risk listAL10 8PG: not on the flood risk listAL10 8PH: not on the flood risk listAL10 8PJ: not on the flood risk listAL10 8PN: not on the flood risk listAL10 8PP: not on the flood risk listAL10 8PQ: not on the flood risk listAL10 8PR: not on the flood risk listAL10 8PS: not on the flood risk listAL10 8PT: not on the flood risk listAL10 8PU: not on the flood risk listAL10 8PW: not on the flood risk listAL10 8QE: not on the flood risk listAL10 8QF: not on the flood risk listAL10 8QG: not on the flood risk listAL10 8QH: not on the flood risk listAL10 8QL: not on the flood risk listAL10 8QN: not on the flood risk listAL10 8QP: not on the flood risk listAL10 8QQ: not on the flood risk listAL10 8QR: not on the flood risk listAL10 8QS: not on the flood risk listAL10 8QT: not on the flood risk listAL10 8QU: not on the flood risk listAL10 8QW: not on the flood risk listAL10 8QX: not on the flood risk listAL10 8QY: not on the flood risk listAL10 8QZ: not on the flood risk listAL10 8RA: not on the flood risk listAL10 8RB: not on the flood risk listAL10 8RD: not on the flood risk listAL10 8RE: not on the flood risk listAL10 8RF: not on the flood risk listAL10 8RG: not on the flood risk listAL10 8RH: not on the flood risk listAL10 8RJ: not on the flood risk listAL10 8RL: not on the flood risk listAL10 8RN: not on the flood risk listAL10 8RP: not on the flood risk listAL10 8RQ: not on the flood risk listAL10 8RS: not on the flood risk listAL10 8RU: not on the flood risk listAL10 8RX: not on the flood risk listAL10 8RY: not on the flood risk listAL10 8RZ: not on the flood risk listAL10 8SA: not on the flood risk listAL10 8SB: not on the flood risk listAL10 8SD: not on the flood risk listAL10 8SE: not on the flood risk listAL10 8SF: not on the flood risk listAL10 8SG: not on the flood risk listAL10 8SH: not on the flood risk listAL10 8SJ: not on the flood risk listAL10 8SL: not on the flood risk listAL10 8SN: not on the flood risk listAL10 8SP: not on the flood risk listAL10 8SR: not on the flood risk listAL10 8SS: not on the flood risk listAL10 8ST: not on the flood risk listAL10 8SU: not on the flood risk listAL10 8SW: not on the flood risk listAL10 8SX: not on the flood risk listAL10 8SY: not on the flood risk listAL10 8SZ: not on the flood risk listAL10 8TA: not on the flood risk listAL10 8TB: not on the flood risk listAL10 8TD: not on the flood risk listAL10 8TE: not on the flood risk listAL10 8TF: not on the flood risk listAL10 8TG: not on the flood risk listAL10 8TH: not on the flood risk listAL10 8TJ: not on the flood risk listAL10 8TL: not on the flood risk listAL10 8TN: not on the flood risk listAL10 8TP: not on the flood risk listAL10 8TQ: not on the flood risk listAL10 8TR: not on the flood risk listAL10 8TS: not on the flood risk listAL10 8TT: not on the flood risk listAL10 8TU: not on the flood risk listAL10 8TW: not on the flood risk listAL10 8TX: not on the flood risk listAL10 8TY: not on the flood risk listAL10 8TZ: not on the flood risk listAL10 8UD: not on the flood risk listAL10 8UE: not on the flood risk listAL10 8UG: not on the flood risk listAL10 8UN: not on the flood risk listAL10 8UP: not on the flood risk listAL10 8UR: not on the flood risk listAL10 8UT: not on the flood risk listAL10 8UU: not on the flood risk listAL10 8UW: not on the flood risk listAL10 8UX: not on the flood risk listAL10 8UY: not on the flood risk listAL10 8UZ: not on the flood risk listAL10 8XB: not on the flood risk listAL10 8XP: not on the flood risk listAL10 8XR: not on the flood risk listAL10 8XS: not on the flood risk listAL10 8XT: not on the flood risk listAL10 8XU: not on the flood risk listAL10 8XW: not on the flood risk listAL10 8XX: not on the flood risk listAL10 8YA: not on the flood risk listAL10 8YE: not on the flood risk listAL10 8YG: not on the flood risk listAL10 9AB: not on the flood risk listAL10 9AD: not on the flood risk listAL10 9AF: not on the flood risk listAL10 9AG: not on the flood risk listAL10 9AH: not on the flood risk listAL10 9AU: not on the flood risk listAL10 9AX: not on the flood risk listAL10 9AY: not on the flood risk listAL10 9AZ: not on the flood risk listAL10 9BA: not on the flood risk listAL10 9BB: not on the flood risk listAL10 9BD: not on the flood risk listAL10 9BG: not on the flood risk listAL10 9BH: not on the flood risk listAL10 9BJ: not on the flood risk listAL10 9BP: not on the flood risk listAL10 9BQ: not on the flood risk listAL10 9BS: not on the flood risk listAL10 9BT: not on the flood risk listAL10 9BU: not on the flood risk listAL10 9BW: not on the flood risk listAL10 9BX: not on the flood risk listAL10 9BZ: not on the flood risk listAL10 9DA: not on the flood risk listAL10 9DD: not on the flood risk listAL10 9DE: not on the flood risk listAL10 9DF: not on the flood risk listAL10 9DG: not on the flood risk listAL10 9DH: not on the flood risk listAL10 9DJ: not on the flood risk listAL10 9DL: not on the flood risk listAL10 9DN: not on the flood risk listAL10 9DP: not on the flood risk listAL10 9DQ: not on the flood risk listAL10 9DR: not on the flood risk listAL10 9DS: not on the flood risk listAL10 9DU: not on the flood risk listAL10 9DW: not on the flood risk listAL10 9DX: not on the flood risk listAL10 9DY: not on the flood risk listAL10 9DZ: not on the flood risk listAL10 9EA: not on the flood risk listAL10 9EB: not on the flood risk listAL10 9ED: not on the flood risk listAL10 9EE: not on the flood risk listAL10 9EF: not on the flood risk listAL10 9EG: not on the flood risk listAL10 9EH: not on the flood risk listAL10 9EJ: not on the flood risk listAL10 9EL: not on the flood risk listAL10 9EN: not on the flood risk listAL10 9EP: not on the flood risk listAL10 9EQ: not on the flood risk listAL10 9ER: not on the flood risk listAL10 9ES: not on the flood risk listAL10 9ET: not on the flood risk listAL10 9EW: not on the flood risk listAL10 9EZ: not on the flood risk listAL10 9FA: not on the flood risk listAL10 9FB: not on the flood risk listAL10 9FD: not on the flood risk listAL10 9FE: not on the flood risk listAL10 9FF: not on the flood risk listAL10 9FG: not on the flood risk listAL10 9FH: not on the flood risk listAL10 9FJ: not on the flood risk listAL10 9FL: not on the flood risk listAL10 9FN: not on the flood risk listAL10 9FP: not on the flood risk listAL10 9FQ: not on the flood risk listAL10 9FR: not on the flood risk listAL10 9FT: not on the flood risk listAL10 9FU: not on the flood risk listAL10 9FW: not on the flood risk listAL10 9FX: not on the flood risk listAL10 9FY: not on the flood risk listAL10 9FZ: not on the flood risk listAL10 9GA: not on the flood risk listAL10 9GB: not on the flood risk listAL10 9GD: not on the flood risk listAL10 9GF: not on the flood risk listAL10 9GG: not on the flood risk listAL10 9GH: not on the flood risk listAL10 9GJ: not on the flood risk listAL10 9GL: not on the flood risk listAL10 9GN: not on the flood risk listAL10 9GP: not on the flood risk listAL10 9GQ: not on the flood risk listAL10 9GR: not on the flood risk listAL10 9GS: not on the flood risk listAL10 9GT: not on the flood risk listAL10 9GW: not on the flood risk listAL10 9GX: not on the flood risk listAL10 9GY: not on the flood risk listAL10 9GZ: not on the flood risk listAL10 9HA: not on the flood risk listAL10 9HB: not on the flood risk listAL10 9HD: not on the flood risk listAL10 9HE: not on the flood risk listAL10 9HF: not on the flood risk listAL10 9HG: not on the flood risk listAL10 9HH: not on the flood risk listAL10 9HJ: not on the flood risk listAL10 9HN: not on the flood risk listAL10 9HP: not on the flood risk listAL10 9HQ: not on the flood risk listAL10 9HR: not on the flood risk listAL10 9HS: not on the flood risk listAL10 9HT: not on the flood risk listAL10 9HU: not on the flood risk listAL10 9HW: not on the flood risk listAL10 9HX: not on the flood risk listAL10 9HY: not on the flood risk listAL10 9HZ: not on the flood risk listAL10 9JA: not on the flood risk listAL10 9JB: not on the flood risk listAL10 9JD: not on the flood risk listAL10 9JE: not on the flood risk listAL10 9JG: not on the flood risk listAL10 9JH: not on the flood risk listAL10 9JJ: not on the flood risk listAL10 9JN: not on the flood risk listAL10 9JP: not on the flood risk listAL10 9JR: not on the flood risk listAL10 9JS: not on the flood risk listAL10 9JT: not on the flood risk listAL10 9JU: not on the flood risk listAL10 9JX: not on the flood risk listAL10 9JY: not on the flood risk listAL10 9JZ: not on the flood risk listAL10 9LA: not on the flood risk listAL10 9LB: not on the flood risk listAL10 9LD: not on the flood risk listAL10 9LE: not on the flood risk listAL10 9LF: not on the flood risk listAL10 9LG: not on the flood risk listAL10 9LH: not on the flood risk listAL10 9LJ: not on the flood risk listAL10 9LL: not on the flood risk listAL10 9LN: not on the flood risk listAL10 9LP: not on the flood risk listAL10 9LQ: not on the flood risk listAL10 9LR: not on the flood risk listAL10 9LT: not on the flood risk listAL10 9LU: not on the flood risk listAL10 9LW: not on the flood risk listAL10 9LX: not on the flood risk listAL10 9LY: not on the flood risk listAL10 9LZ: not on the flood risk listAL10 9NA: not on the flood risk listAL10 9NB: not on the flood risk listAL10 9NE: not on the flood risk listAL10 9NG: not on the flood risk listAL10 9NH: not on the flood risk listAL10 9NJ: not on the flood risk listAL10 9NL: not on the flood risk listAL10 9NN: not on the flood risk listAL10 9NP: not on the flood risk listAL10 9NR: not on the flood risk listAL10 9NS: not on the flood risk listAL10 9NT: not on the flood risk listAL10 9NU: not on the flood risk listAL10 9NW: not on the flood risk listAL10 9NX: not on the flood risk listAL10 9NY: not on the flood risk listAL10 9PA: not on the flood risk listAL10 9PB: not on the flood risk listAL10 9PD: not on the flood risk listAL10 9PE: not on the flood risk listAL10 9PF: not on the flood risk listAL10 9PH: not on the flood risk listAL10 9PJ: not on the flood risk listAL10 9PL: not on the flood risk listAL10 9PQ: not on the flood risk listAL10 9PR: not on the flood risk listAL10 9PS: not on the flood risk listAL10 9PW: not on the flood risk listAL10 9QB: not on the flood risk listAL10 9QD: not on the flood risk listAL10 9QE: not on the flood risk listAL10 9QF: not on the flood risk listAL10 9QG: not on the flood risk listAL10 9QH: not on the flood risk listAL10 9QJ: not on the flood risk listAL10 9QL: not on the flood risk listAL10 9QN: not on the flood risk listAL10 9QP: not on the flood risk listAL10 9QQ: not on the flood risk listAL10 9QR: not on the flood risk listAL10 9QS: not on the flood risk listAL10 9QT: not on the flood risk listAL10 9QU: not on the flood risk listAL10 9QW: not on the flood risk listAL10 9QX: not on the flood risk listAL10 9QY: not on the flood risk listAL10 9QZ: not on the flood risk listAL10 9RA: not on the flood risk listAL10 9RB: not on the flood risk listAL10 9RD: not on the flood risk listAL10 9RF: not on the flood risk listAL10 9RH: not on the flood risk listAL10 9RJ: not on the flood risk listAL10 9RN: not on the flood risk listAL10 9RP: not on the flood risk listAL10 9RQ: not on the flood risk listAL10 9RR: not on the flood risk listAL10 9RS: not on the flood risk listAL10 9RT: not on the flood risk listAL10 9RU: not on the flood risk listAL10 9RW: not on the flood risk listAL10 9SA: not on the flood risk listAL10 9SB: not on the flood risk listAL10 9SD: not on the flood risk listAL10 9SE: not on the flood risk listAL10 9SF: not on the flood risk listAL10 9SG: not on the flood risk listAL10 9SH: not on the flood risk listAL10 9SJ: not on the flood risk listAL10 9SL: not on the flood risk listAL10 9SN: not on the flood risk listAL10 9SP: not on the flood risk listAL10 9SQ: not on the flood risk listAL10 9SR: not on the flood risk listAL10 9SS: not on the flood risk listAL10 9ST: not on the flood risk listAL10 9SU: not on the flood risk listAL10 9SX: not on the flood risk listAL10 9SY: not on the flood risk listAL10 9SZ: not on the flood risk listAL10 9TB: not on the flood risk listAL10 9TF: not on the flood risk listAL10 9TG: not on the flood risk listAL10 9TH: not on the flood risk listAL10 9TL: not on the flood risk listAL10 9TP: not on the flood risk listAL10 9TR: not on the flood risk listAL10 9TW: not on the flood risk listAL10 9UA: not on the flood risk listAL10 9UB: not on the flood risk listAL10 9UD: not on the flood risk listAL10 9UE: not on the flood risk listAL10 9UG: not on the flood risk listAL10 9UH: not on the flood risk listAL10 9UL: not on the flood risk listAL10 9UN: not on the flood risk listAL10 9UP: not on the flood risk listAL10 9UQ: not on the flood risk listAL10 9UR: not on the flood risk listAL10 9US: not on the flood risk listAL10 9UT: not on the flood risk listAL10 9UW: not on the flood risk listAL10 9UX: not on the flood risk listAL10 9UY: not on the flood risk listAL10 9UZ: not on the flood risk listAL10 9WN: not on the flood risk listAL10 9WP: not on the flood risk listAL10 9WW: not on the flood risk listAL10 9WX: not on the flood risk listAL10 9XB: not on the flood risk listAL10 9XE: not on the flood risk listAL10 9BE: low flood risk at worstAL10 9BL: low flood risk at worstAL10 9EU: low flood risk at worstAL10 9LS: low flood risk at worstAL10 9RY: low flood risk at worstAL10 9RZ: low flood risk at worstAL10 9UF: low flood risk at worstAL10 9RX: medium flood risk at worst Hatfield Map of every postcode in AL10, by flood risk Of the 786 postcodes in AL10 that ONS places, 1 are at medium risk at worst, 7 are at low risk at worst and 778 are not on the Environment Agency's at-risk list. Places named: Hatfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A414 Hatfield
  • A home or business at high risk: 0
  • At medium risk at worst: 1
  • At low risk at worst: 7
  • At very low risk only: 0
  • Not on the at-risk list: 778

Of the 786 postcodes in AL10 that ONS places, 1 are at medium risk at worst, 7 are at low risk at worst and 778 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.7602, longitude -0.2325. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The postcodes at medium risk at worst

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

AL10 9RX4 at medium risk

What broadband can you get in AL10?

Ofcom reports on 753 of the 786 postcodes in AL10. At 563 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit563 of 753
Postcodes where every home can get superfast716 of 753

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is AL10 at risk of flooding?

8 of the 786 postcodes in AL10 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 4 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 8 of 786 postcodes Medium: 4Low: 470

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in AL10?

Homes in AL10 sold for a typical £365,000 in the 12 months to August 2026, across 216 sales, down 2.7% on the 12 months before, HM Land Registry's figures show.

£365,000 typical price, the 12 months to August 2026
£375,000 12 months to August 2025
▼ down 2.7% on the 12 months before
  • Detached £626,000 24 sales
  • Semi-detached £470,000 42 sales
  • Terraced £360,000 104 sales
  • Flat or maisonette £216,250 46 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in AL10

Pick a sector, then a postcode. A sector is the district plus the next digit.

AL10 0236 postcodesAL10 113 postcodesAL10 8258 postcodesAL10 9279 postcodes
UK postcode format explained

Places in AL10

Towns and villages with postcodes in AL10, and how many each has here.

Hatfield postcodes,775Welham Green postcodes,2

Who covers AL10

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Welwyn Hatfield786

Police force areas

  • Hertfordshire786

Next to AL10

AL9 postcode district All AL districts Hatfield postcodes

"Next to" is by number: the district before AL10 in the AL area.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.